Equations and Inequalities

Mrs. Scott decided that she would spend no more than $120 to buy a jacket and a skirt. If the price of the jacket was $20 more than 3 times the price of the skirt, which inequality represents the highest possible price of the skirt?

• 20x + 120 ≥ 3

• x/3 + 20 ≤ 120

• 3x + 20 ≤ 120

• 3x + 20 ≥ 120

Tags

CCSS.7.EE.B.4B

The dance committee hired a DJ for the fall dance. The DJ charges $125 per hour in addition to $55 for an assistant. The committee wants to keep the total cost under $600. Which inequality represents the maximum amount of hours the DJ will play at the dance?

• 125x + 55 ≤ 600

• 125x + 55 ≥ 600

• 125x + 55 > 600

• 125x + 55 < 600

Tags

CCSS.7.EE.B.4B

Triniti had $500 in a saving account at the beginning of the summer. She wants to have at least $200 in the account by the end of the summer. She withdraws $25 each week for food, clothes, and movie tickets. Which inequality represents her situation?

• 200 + 25x ≥ 500

• 500 + 25x ≥ 200

• 500 - 25x ≥ 200

• 500 - 25x ≤ 200

Tags

CCSS.7.EE.B.4B

The members of Carver Middle School's Junior Beta Club need to raise at least $2000 to attend their national convention. They raised $300 with their last fundraiser and decide to host a school talent show to raise the rest. They plan to charge $10 for each ticket. Which inequality shows the number of tickets they must sale to reach their goal?

• 300x + 10 ≥ 2000

• 10x + 300 ≤ 2000

• 10x + 300 > 2000

• 300 + 10x ≥ 2000

Tags

CCSS.7.EE.B.4B

Natalie is a softball coach. She has a pitching private lesson with Kasey. Kasey's mom pays Natalie $11 per hour plus a $6 tip. Write an equation that represents this scenario if the total cost was $39.

• 11x + 6 = 39

• 11x - 6 = 39

• 11 + 6x = 39

• 66x = 39

Tags

CCSS.HSA.CED.A.3

How do we call 2a + 3b = 10

• equation

• expression

• inequality

• mathematical phrase

Tags

CCSS.6.EE.A.2C

Which of the following represents an inequality?

• x - 2 =12

• 2x - 7 = 12

• 2x > 12

• 9 - 7x = 12

Tags

CCSS.6.EE.B.8

Which of the following is the symbol used for greater than or equal to?

Tags

CCSS.6.EE.B.8

What do you call this mathematical sentence 5x - 2 > 10?

• equation

• expression

• inequality

• all of the above

Tags

CCSS.7.EE.B.4B

Which of these values of x satisfy the inequality 7x > 8?

• 2

• 1

• 0

• -1

Tags

CCSS.6.EE.B.5